What time did the man go to the dentist?
Why this joke works
The Clock Answer Sounds Like a Dental Problem
“Tooth hurty” echoes “two thirty,” turning a clock time into a very simple description of a sore tooth. The question asks when the man went, so listeners expect numbers; the dentist supplies a reason to hear teeth instead. It is an approximate sound match, not a medical expression. Reading it in a normal voice keeps the joke centered on those two meanings without needing an accent, a character impression, or an extra story about treatment.
A closer look
Written and Spoken Versions Reveal Different Clues
On paper, the spelling exposes the sore-tooth reading immediately, leaving the reader to recover the time. Spoken aloud, it can work in the opposite direction: the rhythm first resembles a clock answer. Leave a tiny pause before the response, then let the two short words stand alone. Explaining “two thirty” immediately afterward can interrupt that moment of recognition.
Fact behind the joke
The Tooth’s Outer Coat Is Exceptionally Hard
The American Dental Association identifies tooth enamel as the hardest substance in the human body. Enamel forms the protective outer covering of teeth, but hardness does not make it indestructible. That combination helps explain why teeth can withstand everyday chewing while still needing care; the appointment-time joke is wordplay, not a way to judge a tooth’s condition.